ECC Study Guide

Front

What is the composition of gas samples taken from near the ground and high in the air?

Back

Both samples are made of a mix of several different kinds of gases.

Front

What happens to the amount of energy absorbed by Earth's surface when methane levels decrease?

Back

The amount of energy absorbed by Earth's surface decreases.

Front

How does an increase in methane affect energy in the Earth system?

Back

An increase in methane leads to more energy in the Earth system because more exiting energy is redirected back toward Earth.

Front

What is the effect of decreased methane on energy in the Earth system?

Back

Decreased methane leads to less energy in the Earth system and less energy absorbed by Earth's surface.

Front

What can be concluded about the atmosphere based on gas analysis?

Back

The atmosphere is made of a mix of different kinds of gases.

Front

What role does methane play in the Earth's energy balance?

Back

Methane acts as a greenhouse gas, trapping heat and affecting the energy balance of the Earth.

Front

What is the significance of energy entering and exiting the Earth system?

Back

The balance of energy entering and exiting the Earth system determines the overall climate and temperature of the planet.

Front

How do scientists measure the composition of gases in the atmosphere?

Back

Scientists use gas sampling techniques and instruments like gas chromatographs to analyze the composition of atmospheric gases.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the process by which certain gases trap heat in the Earth's atmosphere, leading to a warming effect.

Front

What are some examples of greenhouse gases?

Back

Examples of greenhouse gases include carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).